baber/WOPTO huggingface dataset:
Patent GB-354271-A (GB)
Title: Improvements in the manufacture of electric incandescent lamps
IPC: H01J9/30
Filed: 1930-01-28
Abstract: 354,271. Electric incandescent lamp caps. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London.-(Assignees of Patent-Treuhand-Ges. f³r Elektrische Gl³hlampen; 11, Ehrenbergstrasse, Berlin.) Jan. 28, 1930, No. 2973. Convention date, May 24, 1929. Void [Published under Sect. 91 of the Acts]. [Class 39 (ii).] Caps of insulating material are .applied to incandescent lamp bulbs by mounting the base 4 of the bulb 1, together with the sealed-up end of the exhaust tube 5 and the leading-in wires 6, 7 within a two-part mould 12, 13 provided with a lateral orifice 15 through which the insulating material is forced, either in the molten or plastic conditior which solidifies on cooling, or as a powder which is transformed into a solid condition by heating or sintering. Preferably the contact members 9, 11 are secured to the leading-in wires 6, 7 respectively before the bulb is mounted in the mould.
Patent GB-430443-A (GB)
Title: Improvements relating to the cooling of air-cooled radial-cylinder engines on aircraft
IPC: F01P7/02
Filed: 1934-01-29
Abstract: 430,443. Cooling cylinders. SIEMENS & HALSKE AKT.-GES., Siemensstadt, Berlin. Jan. 29, 1934, No. 3018. Convention date, Jan. 28, 1933. [Class 7 (ii)] [See also Group XXXIII] Separate cooling-air passages 5, through the cowling of a radial-cylinder aircraft engine, are provided for the individual cylinders, the entrance to each passage being formed as a slot, slightly inclined to the corresponding radius and adjacent the propeller 4, and after passing the cylinder, the longer dimension changes to transverse, and the passage emerges in the form of a circumferential slot g, at a small inclination, and thus avoids the formation of eddies. The cross-sectional area of each passage is substantially constant throughout, except that allowance is made for the expansion of the air in cooling the cylinders. Each cylinder is surrounded by a sheath 6 in contact with the fins and the total space left between the fins constitutes the area referred to above.
Patent GB-843599-A (GB)
Title: A process for the preparation of iodine
Inventor: MAGOVERN ROBERT LEROY
IPC: C01B7/14
Filed: 1959-01-29
Abstract: Hydrogen iodide as vaporized from an aqueous solution optionally containing iodine, e.g. resulting from a dehydrogenation process, is oxidised to iodine with oxygen, iodine is condensed from the oxidised vapour in an aqueous liquid, the resulting aqueous liquid after removal of precipitated solid or liquid iodine is stripped of iodine by means of a gas, e.g. air, nitrogen, helium or steam, and the stripped iodine is recycled to the condensation step.  The stripped aqueous liquid may be evaporated and cooled by the application of a vacuum or the passage of air and then recycled to the condensation step. Iodine may be recovered from the gas from the condensation step by scrubbing with an aqueous liquid, e.g. from the dehydrogenation process, the resulting aqueous liquid being recycled to the dehydrogenation process, recycled to the initial vaporization step, or contacted with activated charcoal.  Gas from the scrubber may be vented or passed to the cooler following the stripper.  The separated iodine and an aqueous liquid bleed from the separator and the cooler may be recycled to the dehydrogenation process. Vaporization may be effected by contact with a hot gas in a porous bed of refractory material or in a burner with or without simultaneous oxidation. Oxidation may be effected in a free-space reactor at 600 DEG C. in a reactor containing non-catalytic material, (e.g. fused clay, firebrick, silicon carbide, alundum, corundum and boron nitride) at 200-400 DEG C., acidic catalytic material (e.g. clay and silica-alumina), neutral catalytic material (e.g. clay, p  silica, alumina, and calcined diatomaceous earth) or a Deacon process catalyst; or in a burner which may be submerged in an aqueous liquid. Condensation may be effected in a porous bed of glassy or ceramic material; by the use of grid, disc or doughnut trays; by spraying; in a nozzle in which vapour and liquid are thoroughly mixed; or by the use of a submerged combustion burner. Specifications 820,142 and 835,835 are referred to.
Patent GB-852374-A (GB)
Title: Phenolic amino compounds
Inventor: BROWN JOSEPH PATRICK
Filed: 1958-01-31
Abstract: An (N:N-disubstituted-amino)-methyl-2-alkylphenol is obtained by the reaction of a 2-alkylphenol, wherein the alkyl group is n-tridecyl, n-tetradecyl or n-pentadecyl, with formaldehyde and a secondary amine R1R2NH, wherein R1 and R2 are alkyl groups or together form an alkylene chain which may be interrupted by another hetero atom.  In an example 4-bromoanisole is condensed with myristoyl chloride in presence of aluminium chloride to give 4-bromo-2-myristoyl-anisole, this is reduced by means of zinc amalgam and hydrochloric acid to 4-bromo-2-n-tetradecylanisole, this is refluxed with hydriodic acid to give 2-n-tetradecylphenol and this is reacted with dimethylamine and paraformaldehyde to give an N:N-dimethylaminomethyl-2-n-tetradecylphenol, the hydrochloride of which is also described.  Other amines referred to are diethylamine, di-n-propylamine, morpholine and piperidine, and other salt-forming reagents mentioned are hydrohalic acids and alkyl halides.  The products of the invention are stated to have anti-tubercular properties.
Patent GB-907129-A (GB)
Title: A system of eliminating the higher harmonic voltage of any alternating current circuit
IPC: H03F1/36
Filed: 1959-01-29
Abstract: 907,129. Valve amplifying circuits. AGENCY OF INDUSTRIAL SCIENCE & TECHNOLOGY, MINISTRY OF INTERNATIONAL TRADE & INDUSTRY. Jan. 29, 1959 [Feb. 6, 1958], No. 3243/59. Class 40 (6). Harmonics of a fundamental sinusoidal signal are eliminated from a circuit by connecting across the circuit a feed-back amplifier having a very low impedance at the harmonic frequencies, the amplifier comprising a saturable choke to prevent oscillation at the fundamental frequency. Fig. 1 shows a source of voltage S, Zg, containing fundamental and harmonic components, connected to a load. Terminals 1 and 2 are connected to the input of an amplifier AM having an input circuit which rejects the fundamental frequency and which is arranged to be selective for the harmonics. The output of the amplifier is connected through a transformer T to a network MRB providing negative feed-back to the input. The network comprises a number of circuits connected in parallel, each series resonant at one of the harmonics so that the input impedance of the amplifier at the harmonic frequencies is very low and acts between terminals 1 and 2 as a virtual short-circuit. An inductor L 1  is connected across the feed-back circuit to tune the effective capacitance of the series of resonant circuits to the fundamental frequency so as to exclude that frequency. Instability of the amplifier due to low-frequency feed-back through the inductor L 1  is prevented by connecting across the output terminals a saturable core reactor L 0 . It is explained that the inductor saturates at a much lower voltage at the fundamental frequency so that the fundamental output voltage at terminals 3 and 4 is limited to a very low level. The amplifier may comprise a number of stages connected in parallel, each selective at a harmonic frequency. In Fig. 3, the stages comprise an input valve such as V 31 , a cathode follower such as V 33  and a negative feed-back circuit such as B 3 , V 32 , the circuit B 3  comprising a bridged T network resonant at the harmonic frequency. The outputs of the amplifiers are connected to a number of valves connected in parallel to an output power amplifier. A phase compensator is connected to the input of the amplifier.
Patent GB-142567-A (GB)
Title: Improvements in fastener inserting machines for use in the manufacture of shoes
IPC: A43D71/02
Filed: 1919-02-10
Abstract: 142,567. Percival, S., (Champion Shoe Machinery Co.). Feb. 10, 1919. Work-supports.-In fastener-inserting machines in which the work-support is automatically adjusted according to the thickness of the work, the device for depressing the work-support consists cf cam mechanism which.itself is bodily adjusted in accordance with the thickness of the work and is adjusted after the work is clamped and released and re-adjusted as the work proceeds. A horn 15, Fig. 1, is carried by a reciprocating rod 14 which is pressed upwards by a spring 20 and depressed by a bell-crank &c. to allow work to be fed forward beneath the driver 12. The driving-shaft 13 is connected by a chain 81 with a countershaft 40, Fig. 2, which rotates at the same speed. A cam 48, operating the bell-crank 50, 52 and worksupport 14 &c., is carried by a sleeve 47 splined to the shaft 40, and is capable of longitudinal movement thereon. The movement of the cam to the right is checked by a sliding abutment 55 which is intermittently locked by a ratchet-wheel 67 engaged by a detent 68 on a lever 69 operated by a cam 72 on the shaft 40. The cam 48 is urged to the left by a spring 75, which acts on an arm 74 operating a toothed spindle 65 engaging a rack 63 on the abutment 55. The shaft 40 and work-support depressing mechanism are connected to brackets 66 &c. and bearings carried by a removable plate 45 bolted to a main frame 10 of the machine. The spindle 65 carries the ratchetwheel 67 which has a fixed stop 76 and an adjustable one 77 connected by a spring 79 with an arm 780. The rod 14 is pressed upwards against the work by the spring 20; and assuming the bellcrank roller 49 is on the low part of the cam 48, this cam rotates and is first pressed to the right till stopped by the abutment 55. This takes up a certain amount of lost motion in the ratchet 67 between the adjustable stop 77 and the fixed one 76. The cam then depresses the bell-crank and work-support. Then the cam 72 unlocks the detent 68, and the abutment is reset automatically by the spring 79 and the return of the detent 68. To avoid breaking the detent 68 when sharp differences in thickness of work occur, the cam 48 is provided with a deep depression c, so that the bell-crank roller 49 cannot force the mechanism suddenly to the right.
Patent GB-907641-A (GB)
Title: A portioning, mixing and discharging apparatus
IPC: B29B7/74
Filed: 1959-01-29
Abstract: 907,641. Mixing pastes in definite proportions. DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT. Jan. 29, 1959 [Feb. 4, 1958], No. 3281/59. Class 86. An apparatus for mixing pasty substances in definite proportions, especially adhesives and other materials which inter-act with polymerization, comprises a mixing chamber 5 containing a single or multi-thread mixing and conveying worm (which may be of irregularly decreasing pitch, see Fig. 4, not shown) and having supply ducts 3 and inlet passages 4, whose cross-sectional areas may be in approximately the same ratio as the quantities of substances to be mixed and which may have fine adjustment needle valves 9. The discharge nozzle 7 may be attached to the mixer by a screw or bayonet joint, as may the mixer to the driving means 6 through a connector 8. The mixer may be heated or cooled and the terminal mixing core 11 of the worm 1 may have grooves 12 parallel to the worm axis (see also Figs. 2 and 3, not shown).
Patent GB-1502743-A (GB)
Title: Leaf-removing and beet topping device for beet harvesting machines
IPC: A01D23/06
Filed: 1976-01-28
Abstract: 1502743 Beet harvesters WILHELM STOLL MASCHINENFABRIK GmbH 28 Jan 1976 [3 Feb 1975] 03298/76 Heading A1F Leaves are conveyed on a beet topping device by a screw conveyor having a horizontally extending portion 9 comprising two parallel side-by-side screws 11, 12 and an obliquely ascending portion 17; the horizontal screws having drive means separate from that of the ascending screw 19. Thus the screws may be arranged whereby the axes of the screw 11, 12 and 19 intersect above the lower end of the ascending screw 17. An opening 26 in the trough 18 of the screw 19 may be provided for the discharge of stones etc.
Patent GB-1115571-A (GB)
Title: Synthetic polymer latices and films and emulsion polymerization process
IPC: C09K23/10
Filed: 1966-01-25
Abstract: A synthetic vinyl or vinylidene polymer latex is prepared by carrying out the polymerization in the presence of an emulsifier which is a half-acid sulphosuccinate of the structure <FORM:1115571/C3/1> or <FORM:1115571/C3/2> where R is C6-C20 alkyl or mono (C8-C10) alkylsubstituted phenyl, M is hydrogen or a salt-forming radical, at least one M being a salt-forming radical, and n is 0 or a positive integer from 1 to 30.  Compositions of the polymer latex and the sulpho-succinates are also claimed.  In examples, vinyl acetate is polymerized and vinyl acetate and vinyl acetate and 2-ethylhexyl acrylate are copolymerized by a batch process, using sodium bicarbonate and potassium persulphate; vinyl acetate is polymerized by a continuous addition process; acrylonitrile, butadiene and styrene are copolymerized using potassium persulphate, dodecyl mercaptan, and tetrasodium pyrophosphate as a pH adjuster; butadiene and styrene are copolymerized using ammonium persulphate instead of potassium persulphate; butadiene, styrene and acrylic acid are copolymerized using tertiary dodecyl mercaptan, sodium acrylate solution, potassium persulphate and sodium hydroxide.  Emulsifiers used in the examples are ones in which the ester group of the sulphosuccinate is an adduct of ethylene oxide and a C10-C14 or C10-C12 primary straight chain fatty alcohol or nonylphenol, a mixture of C12-C14 primary straight chain fatty alcohols or nonylphenol.  In comparative examples the disodium salt of ester of sulphosuccinic acid and lauric monoethanolamide, sodium lauryl sulphate, alkyl benzene sodium sulphonate, disodium N-octadecyl sulphosuccinamate, sodium bis-(tridecyl) sulphosuccinate and ethylene oxide-octyl phenol adduct are used.ALSO:Half-acid sulphosuccinates of the structure <FORM:1115571/C2/1> or <FORM:1115571/C2/2> where R is C6-C20 alkyl or mono (C8-C10) alkyl-substituted phenyl, M is hydrogen or a salt-forming radical, at least one M being a salt-forming forming radical, and n is 0 or a positive integer from 1 to 30, are prepared by esterifying the appropriate alcohol with maleic anhydride and sulphonating, e.g. with sodium sulphite.
Patent GB-1034338-A (GB)
Title: Paint composition
Inventor: POWERS KENNETH WILLIAM
IPC: C09D157/02
Filed: 1964-01-27
Abstract: A binder for an emulsion paint composition comprising a hydrocarbon resin and an elastomer latex, the weight ratio of resin to elastomer being 30/70 to 90/10 on a solids to solids basis is obtained by admixing an emulsion of the said hydrocarbon resin to the elastomer latex.  The hydrocarbon resins preferably have a Standinger molecular weight of 500-5000 and are obtained by the polymerisation of hydrocarbon residues from catalytic cracking of petroleum oil, these polymerizates may be hydrogenated before use.  The elastomer is preferably a butyl rubber copolymer containing 85-99.5 weight per cent of a C4 to C7 isoolefin and 0.5 to 15 weight per cent of a C4 to C14 multiolefin.  Pigments and usual additive, e.g. casein are added to produce emulsion paints.
Patent GB-551929-A (GB)
Title: Improvements in and relating to skips or containers, for laundry and like parcels
IPC: D06F95/00
Filed: 1942-03-16
Abstract: 551,929. Containers for laundry and like parcels. TAYLOR, H. L. March 16, 1942, No. 3457. [Class 18] A skip or container for laundry, dyeing, cleaning and like parcels is constructed of stout waterproof material of box form with overlapping end flaps b and with a strengthening band e extending around the bottom and ends and with side flaps c which can be folded over the end flaps on top of the box, cords f being secured to the ends of the strengthening band so that they can be led through eyelets d provided along the margins of the side flaps. Additional side flaps which overlap the end flaps may be provided under the eyeletted flaps. The eyelets may be replaced by interengaging eyes and eyelets secured by the cord or by a rod passing through the eyes. Two handles may be secured on each side wall, or the ends of the band e may serve as handles.
Patent GB-549962-A (GB)
Title: Mixed capric-caprylic esters and method of making same
IPC: C11C3/02
Filed: 1941-03-14
Abstract: 549,962. Fatty acid esters. DREW, E. F. March 14, 1941, No. 3464. [Class 2 (iii)] An emulsion of oil and soap obtained in the purification by alkali treatment of a natural vegetable oil of the lauric-myristic type (coconut, palm kernel and babassu oil) or the oil itself is hydrolyzed, the resulting free fatty acids are removed and distilled to separate a lower boiling and higher boiling fraction and the lower boiling fraction which contains the acids having ten carbon atoms or less is esterified with a polyhydric alcohol such as glycerol, giving an edible oil of low congealing point. The lower boiling fraction may be further fractionated before esterification to obtain a fraction consisting essentially of caprylic, capric, and lauric acids and a minor amount of caproic and myristic acids. Specification 549,961 is referred to.
Patent GB-432806-A (GB)
Title: Improvements in or relating to photographic roll film cameras
IPC: G03B19/04
Filed: 1934-02-02
Abstract: 432,806. Photographic roll - film cameras. KODAK, Ltd., Kodak House, Kingsway, London.-(Assignees of Mihalyi, J. ; 333, State Street, Rochester, New York, U.S.A.) Feb. 2, 1934, No. 3495. Convention date, Feb. 6, 1933. [Class 98 (i)] A roll-film camera for use with two-part roll film packages as described in Specification 432,805 is provided with loading means to engage the separable parts of the package while forming a single unit and means whereby the separate parts are moved apart so that they will lie in the supply and take up chambers of the camera. Fig. 1 shows a pair of arms 6, 7 having ends engaging the two parts 14, 15 of the film package and operated through links 30 by the camera back 2 so that they open out and occupy the position shown in Fig. 4 when the camera is closed. Fig. 9 shows the ends of the arms 6, 7 in the form of curved straps 60, 61 within which fit the casing parts 62, 63. The casing parts are formed with a flange 64 which slides between the parts 60, 61 and with ribs 65, 66 which engage with slots 67, 68 on the straps 60, 61. Fig. 10 shows a camera in which the arms 79, 80 holding the film casing is operated by pins 75, 76 engaging cam grooves 72, 73 in the camera back. Fig. 12 shows a form wherein only one arm 96 operated by the camera back is employed, the second member being engaged in a holder 94 fixed to the camera. The Specification as open to inspection under Sect. 91 describes also the subject-matter of Specification 423,836. This subject-matter does not appear in the Specification as accepted.
Patent GB-1473241-A (GB)
Title: 3-dimensional patterned articles of moulded rubber
IPC: B29C37/00
Filed: 1974-01-25
Abstract: 1473241 Patterned rubber articles DUNLOP Ltd 8 Jan 1975 [25 Jan 1974] 03564/74 Heading B5A [Also in Division E1] A surface pattern is applied to a 3-dimensional rubber article formed by moulding particles of rubber, by positioning coloured thermoplastics material on the desired areas of the surface of the article, placing the article in a mould which conforms closely to its surface configuration and applying heat and pressure to fuse the coloured thermoplastic material on to the surface of the article. The thermoplastic material may be applied as powder or as a sheet, and the rubber article may be moulded from scrap rubber bonded together by a resin binder.
Patent GB-347748-A (GB)
Title: Automatic envelope sealing machine
IPC: B43M5/04
Filed: 1930-02-03
Abstract: 347,748. Envelope-sealing machines. WRIGHT, G. B., 45, Quadrant Road, Thornton Heath, Surrey. Feb. 3, 1930, No. 3570. [Class 73.] A machine for automatically sealing envelopes comprises a reciprocating carriage for feeding them singly from the bottom of a pile under their flaps extended, with successive means for damping, closing, and sealing the flaps. The envelopes are fed by a vertically-adjustable finger 11 connected by an adjustable link 27 to a crank disc 26, the feeding of more than one envelope being prevented by an adjustable, flexible, wedge-shaped finger 14. The separated envelope is received by feed rollers 36, the extended flap, with its gummed side downwards, being damped by contact with a roller 41 mounted in a tank 42. As the envelope is taken by the further feeding rollers 37, 38 the flap is engaged by an inclined wire 45 and folded, buckling of the body of the envelope being prevented by a wire 47. The envelope finally passes between rollers 39, 40 which seal the flap. The feed rollers 36, 37, 38 bear against mating rollers which are driven by gearing from a hand crank &c., and an adjustable side gauge 55 is provided for adapting the machine to various sizes of envelopes.
Patent GB-1472526-A (GB)
Title: Non-friable rigid polyurethane foam formulation
IPC: C08G18/00
Filed: 1976-01-29
Abstract: 1472526 Flame retardant, rigid polyurethane foam M & T CHEMICALS Inc 29 Jan 1976 [30 Jan 1975] 03588/76 Heading C3R Flame retardant, rigid polyurethane foam is prepared by reacting (a) 100 p.b.w. of a saccharide based polyol containing at least 4 OH groups and 25 to 50% by weight of chlorine or bromine and having a hydroxyl number of 175 to 800, the polyol being derived from the reaction of a bromine- or chlorine-containing olefin oxide containing 3 to 12 carbon atoms with a saccharide selected from dextrose, sucrose and α-methyl glucoside, or with a reaction product of the saccharide with water or an alcohol containing 2 to 4 hydroxyl groups, or with the reaction product after oxyalkylation thereof, and the amount of saccharide being from 8 to 35% by weight of the polyol, with (b) a polyfunctional isocyanate having a functionality of 2À2 to 2-8, the total number of equivalents of isocyanate being 0À95 to 1-2 times the number of equivalents of hydroxyl radicals present in the polyol, in the presence of (c) 10 to 40 p.b.w. of a foaming agent which is a halogenated aliphatic hydrocarbon having a b.p. of -30 to 80 C., (d) 0À05 to 0À5 p.b.w. of a catalyst of the formula (CH 3 ) 2 Sn(SR<SP>1</SP>COOR<SP>2</SP>) 2  wherein R<SP>1</SP> is a C 1-12  alkylene radical and R<SP>2</SP> is a C 1-20  alkyl radical or a cycloalkyl, aryl, alkaryl or aralkyl radical, (e) 0À2 to 1À5 p.b.w. of a tertiary amine co-catalyst and (f) 0À5 to 3 p.b.w. of a silicone oil surfactant. Most preferably polyol (a) is derived from 4,4,4-trichloro-1,2-epoxy-butane, component (b) is polyphenylene polymethylene isocyanate and the catalyst (d) is dimethyl tin bis-(isooctyl mercaptoacetate). Components (c), (e) and (f) may be any of those well known in the art.
Patent GB-323668-A (GB)
Title: Improvements in and connected with barrels or drums
IPC: B65D25/14
Filed: 1929-02-04
Abstract: 323,668. St. Helens Cable & Rubber Co., Ltd., and Swallow, A. V. Feb. 4, 1929. Heads; lined metal partitioned casks.-In order that all the seams of a drum for corrosive liquids may be electrically or otherwise autogenously welded, the drum A is provided with an internal flange B having a false lid C secured thereto. The false lid and the drum are lined with acid resisting material D such as ebonite or rubber, and the real head E is welded to the body of the drum outside the false lid.
Patent GB-1346861-A (GB)
Title: Frequency detector
IPC: G08C19/12
Filed: 1972-01-26
Abstract: 1346861 Frequency detection WAVETEK 26 Jan 1972 [19 April 1971] 3733/72 Heading H3A In a frequency detector for comparing the frequencies of an input at 10 and one at 20, the input at 20 is split into a number of phases displaced signals, e.g. four, each of which is compared separately with the input at 10. As described, the signal at 20 is split into two quadrature components 26, 28 each of which is fed to a P-channel and an N-channel FET 34, 44, 36, 46. The signal 10 is fed to all four FET's and the resulting difference frequency outputs are applied, via capacitors 60, 62, 64, 66 which make their amplitudes frequency dependent, to OR gate 70, 72, 74, 76 and output stage 80.